{"product_id":"namura-060-over-bore-top-end-repair-kit-for-polaris-350-2-stroke-atv-s-81-5mm","title":"Namura .060 Over Bore Top End Repair Kit for Polaris 350 2-Stroke ATV's 81.5mm","description":"\u003ch2\u003e.060 Over Bore Top End Repair Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis .060 over bore top end repair kit for Polaris 350 2-stroke ATVs provides an oversized piston and rings for engines bored to 81.5mm. It is the correct .060 over bore top end repair kit when your cylinder has been machined to the next oversize. This top end repair kit ensures a proper fit for Polaris 350 engines needing an overbore.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis .060 over bore top end repair kit is a complete rebuild set for Polaris 350 2-stroke ATVs that have been bored to 81.5mm. It includes an oversized piston, rings, wrist pin, circlips, and gaskets. The kit is intended for mechanics or enthusiasts performing a top end rebuild on a Polaris 350 that requires an oversized piston.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOversized cast piston for 81.5mm bore (.060 over)\u003c\/li\u003e\n\u003cli\u003eChrome piston rings designed for the larger bore\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and circlips for secure attachment\u003c\/li\u003e\n\u003cli\u003eComplete gasket set prevents leaks after reassembly\u003c\/li\u003e\n\u003cli\u003eMachined to meet or exceed OEM tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Polaris 350 2-Stroke ATV (with 81.5mm bore)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRecreational trail riding on Polaris 350 ATVs\u003c\/li\u003e\n\u003cli\u003eUtility tasks requiring reliable engine performance\u003c\/li\u003e\n\u003cli\u003eEngine rebuilding projects for vintage two-stroke ATVs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e81.5mm (.060 Over)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.060 in (1.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris 350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this kit compatible with standard bore Polaris 350 engines? \u003cstrong\u003eA:\u003c\/strong\u003e No, this .060 over bore kit is designed only for cylinders that have been bored to 81.5mm; standard bore engines require the 80mm kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to hone the cylinder before installing this kit? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the cylinder must be properly bored and honed to the specified 81.5mm size before installing the oversized piston and rings.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949771386966,"sku":"SZ1F14581","price":219.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_409cb19c-dcc9-4489-984b-05fc6bc4446a.jpg?v=1781398626","url":"https:\/\/www.solidspare.com\/products\/namura-060-over-bore-top-end-repair-kit-for-polaris-350-2-stroke-atv-s-81-5mm","provider":"Solid Spare","version":"1.0","type":"link"}